package com.xjtu.chapter04.ex4_2;

/**
 * @author yjq
 * @version 1.0
 * @date 2021/8/13 20:31
 */
public class BikeTest {
    public static void main(String[] args) {
        SpeedBike abike = new SpeedBike();
        abike.pressHorn();
        abike.ride();
        abike.speedUp();
    }
}
